The impact of heat-set milk protein gel textures modified by pH on circulating amino acid appearance and gastric function in healthy female adults: a randomised controlled trial
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View abstract on PubMed
Summary
This summary is machine-generated.Altering dairy gel texture through pH modification impacts protein digestion. Softer gels led to faster amino acid absorption, suggesting tailored food design for health benefits.
Area Of Science
- Food Science
- Nutritional Biochemistry
- Gastroenterology
Background
- Dairy protein processing affects texture, nutritional value, and amino acid bioavailability.
- pH modification of dairy gels alters protein structure and subsequent digestion rates.
Purpose Of The Study
- To investigate the impact of dairy gel texture (firm vs. soft) on indispensable amino acid (IAA) appearance and gastric myoelectrical activity.
- To explore how altering dairy gel structure via pH influences postprandial amino acid absorption.
Main Methods
- A randomized, single-blind, cross-over trial involving 20 healthy females consuming firm (pH 5.6) and soft (pH 6.2) dairy gels.
- Measurement of plasma amino acid concentrations over 5 hours and gastric myoelectrical activity.
- Analysis of glycaemic, triglyceridaemic, and subjective appetite responses.
Main Results
- No significant difference in overall plasma IAA area under the curve between the two gels.
- Higher and faster plasma IAA concentrations observed 30 minutes post-consumption with the soft gel compared to the firm gel.
- Soft gel also resulted in higher total, branched-chain, and dispensable amino acid concentrations at 30 minutes.
Conclusions
- Dairy gel texture, manipulated by pH, influences the rate of amino acid absorption.
- Softer dairy gels promote a faster postprandial aminoacidemia compared to firmer gels.
- Food processing modifications, like pH adjustment, can be used to customize nutrient release from dairy products for potential health applications.
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